第38卷第3期 2016年5月
石
油
采工钻
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2016)03030703
DOI: 10.13639/j.odpt.2016.03.006
Vol. 38 No. 3
May2016
0193.7mm套管开窗侧钻分支井钻完井技术
陈振刚
长成钻探工程有限公司工程技术研究院
引用格式：陈振刷.0193.7mm套管开窗侧钻分支并钻完并技术LJ」，石油钻采工艺,2016，383)：307-309
摘要：曙125-H3井位于辽河陷西部凹陷曙光低潜山曙125区块，是一口利用复杂结构分支并技术提高单井控制储量的特球工艺并。该并是回内首口①193.7mm套管开窗侧钻的分支并，存在并身结构复杂、井场位置受限、井深、水平段长、轨速上等实施难点。通过并身结构优化、开窗位置优选、并眼轨进优化实现了并身结构覆身，节约了钻并投资，通过高压造斜器底座的研制与应用、钻具优选、钻进方式优化、紧后扩眼、强剧性钻具通并、弯管-导管重入等技术解决了现场实施中的技术难点。该井的成功实施提供了一种新的分支并并身结构，可以有效降低钻并授资，提高单并并眼波及范图。
关键词：分支井；侧钻井；高压造斜器底座；0193.7mm套管开窗
中图分类号：TE243
文献标识码：B
Drilling and completion technique for multilateral well
sidetracked through 0193.7 mm casing hole
CHEN Zhengang
GWDC Engineering Technology Research Institufe, Parjin, Liaoning 124010, Chind
Citation: CHEN Zhengang. Drilling and completion technique for multilateral well sidetracked through 0193.7 mm casing hole [J J . Oil Drilling & Production Technology, 2016, 38(3): 307-309.
Abstraet: Well Shu 125-H3, deployed in the Shu 125 Block in the Shuguang low buried hill, westem Liaohe depression, is a techni-cally special well to control more reserves by using complicated multilateral well technique. It is the first multilateral well sidetracked through 0193.7 mm casing hole. Operations of Well Shu 125-H3 were challenged by complicated well structure, restricted well site, large well depth, long horizontal section and upwarding trajectory. Through optimizations of casing program, casing hole position and hole trajectory, the well structure was optimized effectively and the drilling investment was reduced. Technical difficulties in field op-erations were addressed by virtue of high-pressure whipstock seat, optimal drilling tools, optimized drilling mode, immediate reaming, drifting with highly-stiff tools, and bend-conductor re-entry. The successful drilling and completion of Well Shu 125-H3 recommends a new casing program of multilateral well to reduce drilling cost effectively and increase single-well sweeping coverage.
Key words: multilateral well; sidetrack well; high-pressure whipstock seat; 0193.7 mm casing hole
曙125-H3井位于辽河油田曙光低潜山带东北部曙125区块，实施目的为利用分支井技术来提高井眼与潜山油藏的接触面积、开发及评价板岩上下两油藏、提高单井产量、降低开发成本。该井含有两层分支井眼，侧钻开窗位置限制条件多，轨迹控制难度大，并需要实施连续油管重入酸化作业，工程施工难度较大。
1钻井工程设计
Drillingengineeringdesign
井身结构 1.1
Casing program
由于城区井场面积受限，该井设计为一口带有 2个主分支井眼、4个鱼骨型分支井眼的复杂结构
基金项目：中国石油天点气集团公司项目“侧钻求平并/分交并新工具现场试验"部分成果（编号：2012F-44)。
作者简介：陈振明(1983-),2006年半业于大庆石泌学院石油工程专业，现双事分支井等钻完并技术研究与应用工作。通试地延：(124010）
运宁省盘锦市长域钻探工程技术研究统分支并所。E-mail；chenzhengang_china@126.com
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